Download iPadOS 12.1.1 Build 16C50 IPSW Firmware Restore Files
Download the IPSW iPadOS 12.1.1 (Build 16C50) firmware file released at 05 December 2018 intended to restore iPad Air (China) via iTunes. IPSW iPadOS 12.1.1 build 16C50 is unsigned by Apple to update Apple device software.